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Dilute solution behavior on surface morphology of poly(9-vinylcarbazole)/4,4’ -dinitrodibenzyl blends

A. G. GRIGORAŞ1,* , V. C. GRIGORAŞ1, V. BARBOIU1

Affiliation

  1. “Petru Poni” Institute of Macromolecular Chemistry; Grigore Ghica Voda Alley, 41A, Iasi, Romania

Abstract

Charge transfer (CT) interactions were proved in blends of poly(9-vinylcarbazole) with 4,4’ -dinitrodibenzyl (DNDB) in solution and bulk. Besides classical approach to characterization of charge transfer interactions by spectrophotometric methods, here we compare dilute solutions behavior of blends with surface morphology of spin-coated films. Molecular mass and radius of gyration were extracted from MALLS measurements and completed with refractometric measurements. Spin coated blend films were analyzed by AFM and result images shown that their morphology is related to specific interactions between electron-donor PVK and electron-acceptor DNDB. Also, CT interactions are promoted in blend solutions and solid state, too..

Keywords

charge transfer, PVK, DNDB, MALLS, differential refractometry, AFM.

Submitted at: July 15, 2011
Accepted at: Aug. 10, 2011

Citation

A. G. GRIGORAŞ, V. C. GRIGORAŞ, V. BARBOIU, Dilute solution behavior on surface morphology of poly(9-vinylcarbazole)/4,4’ -dinitrodibenzyl blends, Journal of Optoelectronics and Advanced Materials Vol. 13, Iss. 8, pp. 967-972 (2011)